Well another question, dam. I have two Cerwin Vega 10 inch subs powered by a Memphis ST500. Not loud enough. I am considering yanking everything for either 2 12 inchers with the same amp, or moving to one or even two 15's and then I would probably move to a Memphis ST or MC1000 amp. I listen primarily to Metal or Hard Rock, no rap, and I want something that hits nice and tight with base. I am looking at the Cerwin Vega Stroker but could only afford one. Could go with 2 15's or 2 good 12's too, anyone have a good idea of what I should go with? 99 Blazer so plenty of room in the back.......